[ Vor. 4 
68 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
Cuprum-Peacock Mine road, Seven Devils Mountains, 
Idaho, alt. 7000 ft., July 11, 1899, W. C. Cusick 2232 (Univ. 
Cal. Herb., 3986). In this species Ше petals turn purplish, 
as in T. ovatum, and the leaves have short petioles (6 mm.). 
Five miles from Crescent City, Del Norte Co., Cal, April 2, 
1902, P. E. Goddard 309 (Univ. Cal. Herb., 30086), petals 7 
ЖЗ em. (resembling T. grandiflorum), sepals 5 em. long by 
12 mm. wide, leaves 10 em. long by 8.5 em. wide. 
The following, with very large, broad, subacute petals, 
broad, unnerved sepals, and very broad rhomboid leaves, fits 
neither T. venosum nor T. ovatum, and should be considered 
as distinct: Eureka, Humboldt Co., Cal., April 13, 1913, J. Р. 
Tracy 4034 (Univ. Cal. Herb., 176190), petals 6035 mm., 
sepals 4019 mm., obtuse, leaves 15 em. wide by 14 em. long, 
stem stout. This specimen appears to resemble T. Scouleri. 
31. T. obovatum Pursh, Fl. Am. Sept. 1: 245. 1814. 
T. grandiflorum var. obovatum Farwell, Eleventh Ann. 
Rept. Comm. Parks and Boul. Detroit, 53. 1900. 
This plant, according to Farwell, differs from T. grandi- 
florum in having much smaller petals which are rose or pink. 
His plants may really belong to var. parvum. Reichenbach’s 
plate and description,’ under the name T. obovatum Pursh, 
of plants collected in Kamtschatka and communicated by 
Ledebour, represent a distinet plant, differing from T. grandi- 
florum especially in having shorter peduncle, petals white, 
pale rose eolor, or lavender, very short filaments and style, 
stigma subeapitate, the very short lobes reflexed. It is 
undoubtedly distinct from T. obovatum Pursh and T. Kamt- 
schatikum Pall.,? differing from the latter in certain minor 
features. Pursh’s original plants were from Montreal, and 
a study of the species should be made in that vicinity. Its 
exact characters cannot be understood until this is done. 
Rydberg, in his ‘Flora of Montana,” records 7. obovatum 
1Те. Bot. Exot. 1:21. pl. 29. 1827. 
2 Ledebour, C. Е. Fl. Ross. 4:121. 1853. See also Rendle, Jour. Bot. 39: 
329. 1910. 
3 Mem. N. Y. Bot. Gard. 1:102, 472. 1900. 
